Paper bags



7 Sheets-Sheet I.

(No Model.)

P. H; KELLI HER. MACHINE FOR MAKING PAPER BAGS.

Patented Nov. 4, 1.890.

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(No Model.) 7 Sheets-Sheet 2.

' F. H. KELLIHER.

' MACHINE FOR MAKING PAPER BAGS. No. 439,843.

Patented Nov. 4, 1890.

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(No Model.) 7 Sheets-Sheet 3.

H. KELLIHER. MACHINE .POR MAKING PAPERv BAGS. No. 439,843. Patented Nov. 4, 1890.

111: NORM! PETERS 60., Fuom'umo WASKINGTGN, 9. c7

(No Model.) 7 Sheets-Sheet 4.

F. H. KELLIHER. MACHINE FOR MAKING PAPER BAGS.

No. 439,843. Patented NOVA, 1890.

7 Sheets-Sheet 5.

Patented Nov. 4, 1890;

m m f w Z J (No Model.)

FVH. KELLIHER. MACHINE FDR MAKING PAPER- BAGS. No. 439,843.

UNITED STATES PATENT OFFICE.

FREDERICK H. KELLIHER, OF CLEVELAND, OHIO, ASSIGNOR TO NEVTON V. TAYLOR, OF SAME PLACE.

MACHINE FOR MAKING PAPER BAGS.

SPECIFICATION forming part of Letters Patent N0. 439,843, dated November 4, 1890.

Application filed March 1, 1890. Serial No. 342,253. (No model.)

T at whom it may concern.-

Beit knownthatLFREDEmcK H.KELLIHER, of Cleveland, county of Ouyahoga, State of Ohio, have invented an Improvement in Machines for Making Paper Bags, of which the following description, in connection with the accompanying drawings, is a specification, like letters on the drawings representing like parts.

This invention has for its object to improve that class of machines for making paper bags wherein a plicated or bellows-folded tube is employed, and in which the leading end of the tube is first laid as a diamond fold in the process of forming the bottom for the bag, the bottom being completed by cross-folding.

My invention consists, chiefly,in organized means by which to define or complete the radial folds extended from the side edges of the gag toward the center of the bottom of the In my invention herein contained the said radial folds are made by two pairs of fingers adapted to oscillate about a vertical pivot made movable not only toward and from the longitudinal center of the tube, but also in the direction of the tube,while it is being fed through the machine, the free ends of the said fingers in their contracted position entering the plicated folds at the side edges of the tube, one, or it may be both, of the said fingers being thereafter oscillated, the points of the fingers standing, however, substantially together, the oscillation of the said fingers being such as to place their edges back of their free ends in the lines desired for the said radial folds, the said pairs of fingers remaining in the plicated folds while the usual nose and main folding-blade common to United States Patent No. 220,925 and to No. 332,631 act to lay the diamond fold, the said fingers being at the same time moved together horizontally in the direction of the feeding movement of the tube, so that during the formation of the bottom of the bag the feeding of the tube shall not be interrupted. The fingers form a sort of pocket in the bag at the ends of the bottom.

The machine with which I have embodied my invention contains a nose and main folding-blade substantially such as in United States Patent No. 220,925, and to complete the bottom of the bag I employ rolls and blades substantially as in the Appel Patent No. 332,631, the second blade to operate making a blind fold in the body of the bag.

Figure 1 is a top or plan view of a sulficient portion of a machine for making paper bags to enable my invention to be understood; Fig. 2,a partial end elevation, the cutter-rolls, their actuating-gear, shown in Fig. 3, and the delivery-belt roll being omitted; Fig. 3, a longitudinal section in the line 00, Fig. 1, the drawing showing some of the gears as toothed for but part of their peripheries,

'it being, however, understood that the said gears are to he toothed all around. 3 is a detail of the cam c. Fig. 4 is a section in the lines m, Fig. 1, and on the line m, Fig. 3, many parts beyond the line of section being omitted; Fig. 5, a sectional detail below the line 00'', Fig. 3, but with the vertical rockshafts and their sectors removed, the outline of the bed cut off being shown by dotted lines; Figs. 6, 7, 8, and 0, details to be referred to, showing the parts embodying my invention in different positions. Fig. 10 shows a bag the bottom of which has been opened out after having been once closed, the said figure being made chiefly to show the radial folds. Fig. 11 shows a plicated or bellows-folded tube with the different operations performed upon it, part of a bag being shown at the right. Fig. 12 shows the bag end of the tube after making the first cross-fold. Fig. 13 shows the same after the second cross and blind fold. Fig. let shows the bag unfolded on the line of the blind fold, and Fig. 15 shows a bag fully opened for the reception of the material.

The frame-work A, of suitable shape, has suitable hearings to sustain the working parts.

Referring to the drawings, G is apaste-roll and G a roll below it, having a shaft 26, on which in practice may be placed any usual pulley by which to rotate the said shaft, so that it may constitute the main shaft of the machine.

E and E represent two rolls arranged about the roll G; N, an arm having a blade 10; N, an arm having a blade 12; 1e and 24, shafts to which the said arms are attached; D D, rolls, the roll D having a groove (1, creasers e, and slot-cutters d. while the roll D has the straight blades (1 b is a main folder-blade; b alink; b", an arm; 11 a rock-shaft, and g a nose. These parts or devices so far described are and may in practice be substantially the same as in United States Patent No. 332,631.

Besides the parts so far described, the machine herein to be described will have co-operating with it usual devices for forming a wide strip of paper into a plicated or bellowssided tube, and the machine will also have a suitable lip cutter, which may be as in the Patent No. 231,642 and of the usual form to cut a lip, as a, in the tube to aid in opening the mouth of the bag.

The blades at will in practice cut the short longitudinal slots on, the blades d will out the transverse slots a from the side edges of the tube far enough to meet the slots ct and leave the bottom strip a", and the creasingblade 6 makes the radial creases a (See Fig. 11.)

The parts so far specifically described or referred to by letter are not of my invention, and in practice they will derive their motion either substantially as in the said patent to Appel or by other usual and suitable gearing which it has not been deemed necessary to herein fully describe.

Upon the frame I have secured suitable boxes to sustain the shaft 0, having two cams c c and two cam-hubs 0 0 I have also provided the machine with suitable bearings for the shaft 72. and a surrounding tubular shaft h, The tubular shaft h has an arm 7L2, provided with a suitable roller or other stud at its-end, which enters the groove in the side of the cam 0 the shape of the said groove being shown in Fig. 3. This hollow sleeve has two like toothed sectors. The shaft It has fast upon it at one end an arm h, provided at its end with a suitable roller or other stud, which enters agroove at one side of the cam c, the

shape of which groove is indicated in Fig. 3-

The shaft It has secured to it near each end a like sector 71 Erected upon the frame-work at each side is alike hollow post 2, which is surrounded by a sleeve 3, having atits lowerend a toothed sector 4, which is engaged by the toothed sector h. Theupper end of the sleeve 3 has branches 5, herein represented as provided with dovetailed grooves to receive between them a sliding carriage 6, the edges of which are preferably of dovetailed shape to fit the branches 5. The sleeve 3 is kept down on the post 2 by means of a nut 7. 7

Inside the post I have placed two tubular shafts 8 9 and a shaft 101. The tubular shaft 8 at its lower end has attached to it the toothed segment 112,which is engaged and actuated by atoothed segment 72 The upper end of the hollow shaft 8 has fast upon it the hub of a gear 13,which engages internal rack-teeth 141 of the carriage 6, reciprocating the said carriage. The tubular shaft 9 has fast to'it at its upper end an arm 15, which is provided near its outer end with a universally pivoted or jointed stud 16, through which is extended loosely the threaded end of a rod 17, provided with lock-nuts t and jointed to an arm 18, the hub of which is secured by a suitable set-screw to the hollow sleeve 19, having its bearing in a hub 20 at the inner end of the carriage 6,the said sleeve 19 having attached to it at its lower end a finger 21, which is curved substantially as shown in the drawings, the inner end 22 of the said finger being adapted to enter the plicated or bellows fold at the side of the tube, while the latter rests upon the usual table-plate to, over which the plicated tube moves while the bag is being made, the said table-plate being common to other machines.

The lower end of the tubular shaft 9 at the right in Figs. 4; and 5 has attached to it an arm 23, provided at its end with a roller or other stud, which enters a cam-groove in the cam-hub c atthe right-hand side of the machine, as in Figs. 4 and 5; but the tubular shaft 9 at the left-hand side of the machine has attached to it at its lower end an arm 23 which is jointed by a rod 2-11 to the arm 23, the connection between the two arms being such as to oscillate the said tubular shafts 9 for equal distances, but in opposite directions.

The shaft 101 at the right-hand side of the machine (see Figs. 4 and 5) has connected to it at its lower end an arm 25, which is jointed.

by a link 261 to an arm 25", attached to the lower end of the shaft 101 at the left-hand side of the machine, the said arm 25 having a rolleror other stud to enter a cam-groove in the hub 0 the connection between the said arms 25 and 25 being such as-to enable the shafts 101 to be oscillated for the same distances, but in opposite directions. The shafts 101 at their upper ends have connected to them arms 27, provided, as described of the arms 15, each with a jointed or pivoted stud 28, through which is extended loosely a threaded rod 29, having set-nuts if and jointed to an arm 30, secured to the upper end of a shaft 31, provided at its lower end with a bent finger 32, the inner end 33 of which is adapted to enter the plicated fold of the bag just above theinner end of the finger 22. It will be noticed that the free ends 22 and 33 of the fingers 21 and 32 terminate close together in a line corresponding with the centerof oscillation of the shafts 19 and 31, carrying the said fingers, so that as the said fingers are oscillated their free ends 22 and 33 remain in substantially the same relation to each other, the rear parts of the fingers separating. These fingers are shown in Figs. 6 and 9 in different positions, and in their movements of oscillation the free ends of the fingers stand one substantially over the other, the outer or bowed parts of the fingers changing their positions with relation to each other, as shown in Figs. 7 and 9. These fingers and the shafts carrying them have a horizontal movement IOC transverse to the length of the tube, so that the said fingers are made to enter the plicated fold at or just about as or just a little after the open leading end of the tube has been forced upon the nose, so that the said fingers in their what I shall call closed position, as represented substantially in Fig. 7, stand in the said plicated folds, while the nose 9 (the tube being fed forward by anyeusual mechanism) acts upon the upper ply of the bag at its leading end to lay the said ply over and form a diamond fold as the foundation fold for the bottom of the bag-a fold substantially as represented in Figs. 11 and 12. During this operation of laying the upper ply over back to form a diamond fold the main folding-blade 1) passes under the nose gin usual manner, and also passes under the fingers, as shown in Figs. 7 and 9, and at the same time the finger 32 is oscillated in a direction to pass over the folding-blade opposite the direction of movement of the bag, it holding the upper ply and acting upon the upper portion of the plicated fold, so that by the time the diamond fold is fully laid the said finger 32, by change of position with relation to the finger 21, has placed the said fingers 32 and 21 in such positions (see Fig. 9) that their outer edges substantiallycorrespondwith the radial foldlines 35 and 36, said fold-lines being at the edges of What is called the pocket made in the plicated fold after the diamond fold has been laid over. Fig. 9 shows, however, the fingers as having been moved outwardly or removed from the plicated folds after having defined the said fold-lines 35 and 36.

The inner ends of the carriages 6 are so moved that the shafts 19 travel in the dottedline path represented by 191, Fig. 9, or while the fingers operate, as described, to define the radial folds the shafts carrying them are moved horizontally in the direct-ion of the feeding movement of the tube, and the radial folds having been defined the said fingers are withdrawn from the pocket made by them in the plicated fold. By making the fingers 21 and 32 follow the tube in the direction. of its feeding movement stopping of the tube during the formation of the bottom of the bag is obviated. The forward feeding movement of the two fingers together, irrespective of their oscillation, is gained by the oscillation of the tubular shafts 3; but the longitudinal motion of the fingers to cause them to enter the plicated folds, and then to be withdrawn therefrom, is effected by the gears 13 acting upon the internal racks 141.

In operation the edge of the finger 21 nearest the leading end of the bag is always presented to the bag at an angle of substantially forty-five degrees, as that is the angle upon which the radial folds 36 are made, the oscillating movement of the fingers 32 after entering the plicated folds being sufficient to place their outer edges at an angle of substantially forty-five degrees to the longitudinal center of the tube, so as to define the folds 35, the

paper entering into the bellows folds and folded over the said fingers when fully expanded, leaving a pocket at each end of the bagjust above its bottom, the creases or folds 35 and 36 forming the sides of the said pockets, the folds being at right angles to each other. The diamond fold for the bottom of the bag having been laid, the paper is pasted by the pasting device or roll G, ofusual construct-ion, after which the leading end of the diamond fold is cross-folded by the first folding-blade 10, leaving the bag in the condition Fig. 12, the extra speed of the rolls G and E with relation to the cutting-rolls D D being sutficient to tear across or break off the narrow connection a (see Fig. 11) in the under ply of the tube just about as the folding-blade 10 meets the diamond fold. The second crossfold and the usual so-called blind fold are formed by the cross-folding blade 12, which passes between the rolls G and E, they leaving the bag in the condition Fig. 13, and thereafter when the bag is to be used the blind fold is removed in usual manner, leaving the bag in the condition Fig. 14, it having a satchel-bottom and plicated sides, the said bag when opened presenting substantially the appearance shown in Fig. 15. A bag of this class may be readily opened, the operator engaging one ply at the mouth of the bag by his thumb and finger and giving the bag a quick jerk. In practice the shaft 0 may be rotated in unison with the shaft of the cutting-roll D, but in an opposite direction by a gear (not shown) on the shaft of the cutter-roll outside the frame-work, and two intermediate gears s s, the second one of which engages a gear 5 (shown by dotted outline in only Fig. 3) on the shafts outside the frame-work. These gears are partially shown only in Fig. 3 by dotted and full diagram lines.

I do not broadly claim forming the radial folds or creases by means of devices inserted within the bellows-folded or plicated edge of the tube.

I do not desire to limit my invention to the exact mechanical devices shown by which to reciprocate and oscillate the carriage carrying the shafts, to which the fingers 21 and 32 are connected, as they might be variously modified without departing from my invention, and so, also, I do not desire to limit my invention to the exact form of connecting devices between the vertical shafts and the shafts carrying the fingers.

The nose may be of any usual construction.

The bag having the blind fold is discharged from between the rolls G and E upon the belt 10 extended about the roll "a all as usual in the said Appel patent.

I claim-*- 1. A paper-bag-making machine containing the following iustrumentalities in combination, viz: table-plate to support abellows-sided or plicated tube, a pair of carriages, means to actuate them longitudinally and transversely,

a pair of independent fingers connected to vertical shafts supported by said carriages,

' and means to oscillate the said shafts to place of the bottom of the bag.

2. The nose, the main folding-blade, and the pairs of fingers, and the vertical shafts 19 and 31, one outside the other, combined with the carriages having bearings for the said shafts, and means to oscillate the said fingers, Whereby they are oscillated in a horizontal plane between the folded or overlapping outer side edges of the plicated or bellows-folded tube, substantially as described.

3. In a paper-bag-making machine, the following instrumentalities in combination, viz: the carriages, the vertical shafts 19 and 31 arranged thereon one within the other, and the fingers 21 and 32, bent, as described, and connected to said shafts, the points or free ends 22 and 33 of the said fingers terminating in substantially the center line of the said shafts, whereby the free ends of the said fingers as the shafts are oscillated stand in substantially the same relation each to the other to enable the sides of the fingers at the rear of the said free ends to define the radial folds 35 36, substantially as described.

4. The nose, the main folding-blade, and the pairs of fingers, and the vertical shafts 19 and 31, one outside the other, combined with the carriages having bearings for the said shafts, and meansto oscillate the said fingers, whereby they are oscillated in a horizontal plane between the folded or overlapping outer side edges of the plicated or .bellows-foldedtube, and with the rolls G E E and the two folding-blades, substantially as described.

5. The fingers, the vertical shafts to which they are attached,and the carriages 6, support ing the said shafts and provided with rackteeth, combined with the sleeves 3 and 8 and gears 13, and with means to oscillate the said sleeves, substantially as described.

6. The fingers, the vertical shafts to which they are attached, the arms 18. and 30, the rods 17 and 29, arms and 27, and the shafts 9 and 101, combined with means to oscillate the said shafts, substantially as described.

7. The shaft 0, its cams 0 0 the arms and 25, and the rods 261 and 241-, combined with the arms 23 and 23 and with the shafts to which the said arms are connected, substantially as described.

8. The fingers 21 and 32, thevertical'shafts to which they are connected, the carriages 6, supporting the said shafts and provided with rack-teeth, the sleeves 3 and 8, the gears 13, and means to oscillate the said sleeves, combined with the arms 18 and 30, the rods 17 and 29, arms 15 and 27, and shafts 9 and 101,and with means for oscillating the said shafts, to operate substantially as described.

In testimony whereof I have signed my name to this specification in the presence of two subscribing witnesses.

FREDERICK H. KELLIHER.

Witnesses:

GEO. W. GREGORY, EMMA J. BENNETT. 

